Solved

Format huge drive.

Posted on 2004-10-28
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Last Modified: 2008-02-07
I have a winchester WD2500 dive on my system running XPpro.. System has a motherboard  called P4P800-E. How can I format this drive as I get a max of 128GB on this drive only. Is there a utility?
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Question by:PawloA
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    Expert Comment

    by:lbertacco
    You need Windows XP at least SP1 (better SP2). The atapi driver included with the original (pre SP1) WIndows XP doesn't support LBA 48 addressing (which is necessary for hard drives larger than 128GB).
    So just download the service pack and apply it. After that you should manage to repartition the harddrive and see it all.
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    Author Comment

    by:PawloA
    I did upload SP1 and it did not work. The system still sees only 128 GB on this drive. I know it should work because I did my MAXTOR 200GB drive previously. (I may have used the maxtor utility). Is there a utility that can recognize and format a drive > 128GB?
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    Expert Comment

    by:lbertacco
    Can you provide more details please?

    - did you have sp1 installed previously or have you just installed it? In other words: when you have installed the HD, did you already have SP1 installed or did you install SP1 AFTER mounting the HD? (in this second case, you just need to repartition the HD)
    - the 200gb previous HD was mounted on the same motherboard you are using now? (just to be sure that your MB supports LBA48)
    - is this WD2500 drive your only HD or do you have others mountes? Which one is the primary one (with Windows XP) ?
    - when you go to (right click)My Computer->manage->disk manegement you see both the HD and its partitions. Do you see both the disk and the partition as 128GB or the disk as 250GB and the partition as 128GB?
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    Accepted Solution

    by:
    There is a simple registry fix that will stop this from happening.

    open regedit
    go to
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\atapi\parameters

    add the following registry value
    valuename:EnableBigLba
    Datatype:REG_DWORD
    value:1

    I had the same problem with my 200GB western Digitals  and this fix my problems

    -Kelly
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    Expert Comment

    by:lbertacco
    This microsoft support document (http://support.microsoft.com/default.aspx?scid=kb;en-us;303013) says that the "registry fix" is not needed on Sp1 and Sp2 (it's actually IGNORED since on SP1/SP2 LBA48 addressing is always enabled). It's required only on original Windows XP not yet patched
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    Author Comment

    by:PawloA
    Could this have been a problem I have had with files disappearing and errors going into a folder then trying to delete it afterwards and the disk consistancy checks?
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    LVL 11

    Expert Comment

    by:lbertacco
    It could it you didn't have at least sp1
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